Cisco Cisco Email Security Appliance C190 Guía Del Usuario
11-11
Cisco AsyncOS 8.0.2 for Email User Guide
Chapter 11 Content Filters
How Content Filters Work
Strip Attachment by File
Info
Info
File name. Drops all attachments on messages that have a filename that
match the given regular expression. Archive file attachments (zip, tar) will
be dropped if they contain a file that matches.
match the given regular expression. Archive file attachments (zip, tar) will
be dropped if they contain a file that matches.
File size. Drops all attachments on the message that, in raw encoded form,
are equal to or greater than the size (in bytes) given. Note that for archive or
compressed files, this action does not examine the uncompressed size, but
rather the size of the actual attachment itself.
are equal to or greater than the size (in bytes) given. Note that for archive or
compressed files, this action does not examine the uncompressed size, but
rather the size of the actual attachment itself.
File type. Drops all attachments on messages that match the given
“fingerprint” of the file. Archive file attachments (zip, tar) will be dropped
if they contain a file that matches.
“fingerprint” of the file. Archive file attachments (zip, tar) will be dropped
if they contain a file that matches.
MIME type. Drops all attachments on messages that have a given MIME
type.
type.
Image Analysis Verdict. Drops attachments for image attachments that
match the image verdict specified. Valid image analysis verdicts include:
Suspect, Inappropriate, Suspect or Inappropriate, Unscannable, or Clean.
match the image verdict specified. Valid image analysis verdicts include:
Suspect, Inappropriate, Suspect or Inappropriate, Unscannable, or Clean.
Replacement message. The optional comment serves as the means to
modify the text used to replace the attachment that was dropped. Attachment
footers simply append to the message.
modify the text used to replace the attachment that was dropped. Attachment
footers simply append to the message.
Add Disclaimer Text
Above. Add disclaimer above message (heading).
Below. Add disclaimer below message (footer).
Note: You must have already created disclaimer text in order to use this
content filter action.
content filter action.
for more information.
Bypass Outbreak Filter
Scanning
Scanning
Bypass Outbreak Filter scanning for this message.
Bypass DKIM Signing
Bypass DKIM signing for this message.
Table 11-3
Content Filter Actions (continued)
Action
Description